1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    * Permission is hereby granted, free of charge, to any person obtaining a copy
5    * of this software and associated documentation files (the "Software"), to deal
6    * in the Software without restriction, including without limitation the rights
7    * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8    * copies of the Software, and to permit persons to whom the Software is
9    * furnished to do so, subject to the following conditions:
10   *
11   * The above copyright notice and this permission notice shall be included in
12   * all copies or substantial portions of the Software.
13   *
14   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20   * SOFTWARE.
21   */
22  
23  package com.liferay.portal.language;
24  
25  import com.liferay.portal.kernel.util.StringPool;
26  
27  import java.util.Locale;
28  import java.util.Map;
29  import java.util.concurrent.ConcurrentHashMap;
30  
31  import org.apache.struts.util.MessageResources;
32  
33  /**
34   * <a href="LanguageResources.java.html"><b><i>View Source</i></b></a>
35   *
36   * @author Brian Wing Shun Chan
37   */
38  public class LanguageResources {
39  
40      public LanguageResources(MessageResources resources) {
41          _resources = resources;
42          _cache = new ConcurrentHashMap<String, ResourceValue>(10000);
43      }
44  
45      public String getMessage(Locale locale, String key) {
46          String cacheKey = _getCacheKey(locale, key);
47  
48          ResourceValue resourceValue = _cache.get(cacheKey);
49  
50          if (resourceValue == null) {
51              String value = _resources.getMessage(locale, key);
52  
53              resourceValue = new ResourceValue(value);
54  
55              _cache.put(cacheKey, resourceValue);
56          }
57  
58          return resourceValue.getValue();
59      }
60  
61      private String _getCacheKey(Locale locale, String key) {
62          return String.valueOf(locale) + StringPool.POUND + key;
63      }
64  
65      private class ResourceValue {
66  
67          private ResourceValue(String value) {
68              _value = value;
69          }
70  
71          public String getValue() {
72              return _value;
73          }
74  
75          private String _value;
76  
77      }
78  
79      private Map<String, ResourceValue> _cache;
80      private MessageResources _resources;
81  
82  }